Introduction
The T2 temperature & humidity sensor is a Long Range LoRaWAN device that is also capable of attaching an external temperature probe for an additional temperature measurement. Data can be sent over several miles with clear line of sight to a gateway while using ultra-low power consumption for up to ten years of battery life.
Features
- Wall mountable
- LoRaWAN Class A protocol on the US915 LoRa radio band
- Built-in 2400mAh battery for more than 10 year use.
- Built-in Temperature & Humidity sensor
- Optional external temperature probe
- Tri-color LED to indicate status
Specifications
Built-in Temperature Sensor
- Resolution: 0.01 °C
- Long Term Drift: < 0.02 °C/yr
- Operating Range: -40 ~ 125 °C
Built-in Humidity Sensor
- Resolution: 0.04 %RH
- Long Term Drift: < 0.02 °C/yr
- Operating Range: 0 ~ 100 °C
External Temperature Sensor
- Resolution: 0.0625 °C
- ±0.5°C accuracy from -10°C to +85°C
- ±2°C accuracy from -55°C to +125°C
- Operating Range: -55 °C ~ 125 °C
Storage & Operation Temperature: -40°C to +85°C
Applications
- HVAC monitoring
- Refrigerator/Freezer temperature logging
- Humidity tracking for sensitive product storage
Operating the T2
The LHT65 has two working modes: Deep Sleep & Working.
Deep Sleep: This mode is used for storage and shipping to save battery life.
Working: In this mode of operation, the T2 will send out sensor data every twenty minutes. Between each uplink the sensor will sleep.
| Activity | Button | Description |
| Test Uplink | Press between one and three seconds | If the T2 is already joined to a network, it will send an uplink packet. If the T2 has an external sensor connected, the LED will blink blue once. If the external probe is not connected, the red LED will blink once. |
| Activate | Press for longer than three seconds | The green LED will quickly blink five times and the device will enter working mode. After joining the network, the green LED will stay lit for five seconds. |
| Deactivate | Quickly press button five times successively | The T2 LED will turn solid red for five seconds. This indicates the T2 is in Deep Sleep Mode. |
Installing the T2 to Monitor HVACs
An installation guide for the T2 can be found HERE.
Adding T2's to the Kairos Application
T2's can be added to the Kairos application by following this guide.
Comments
0 comments
Please sign in to leave a comment.